Sox are higher on Benintendi right now, and he's definitely more advanced and probably pretty close to contributing. He wrecked every level last year and started off the same this year, if without the HR power. Still, he SHOULD be wrecking A-ball pitchers, kinda like Swanson did. A lot to like.
I wouldn't discount Devers, though, as a lot of folks seem to have done since Benintendi came on the scene. He's struggling in A+ right now, but he's 19. I saw him a lot last year in the SAL, where he was 18 and hitting all-field bombs in games. He's both more risky and further away than Benintendi, but hardly a guy you'd turn your nose up at acquiring.